Cross rolling of parts with non-circular cross section

The aim of this paper is to present the possibilities of forming by means of cross rolling method (CR) of the parts with cross section different from circular one. In the paper the methodology of profiled tools forming is provided. These tools application allows for obtaining of parts with cross section in the shape of square, hexagon, oval, etc. The correctness of the worked out forming conception was confirmed by the results of numerical calculations and experimental research. Experiments were made in laboratory rolling mill LUW-2, parts from steel C45 type were rolled in hot forming conditions. Uniquely, it was stated that using profiled tools, parts in the form of stepped axles and shafts which have steps of non – circular cross section can be formed with satisfactory precision. The application in industrial conditions of profiled tools will allow for enlarging scope of CR technological possibilities and decreasing of material consumption.